Chicken stock idea is nonsense. They are unlikely to make seperate vegetarian bases.
I have seen the base made at four places
There was no chicken stock used
Some places do use it (see Mark J's base post) but the base is not a consistant recipe
Green peppers & carrots are variables too
The chicken arrives, at takeaways, in two forms:-
Breast and "on the bone" drumsticks
It is never frozen and is halal meat
So there is no boiling carcasses at these places
I think that was old style
1990's and previous
I have been given recipes where it is used (see chicken jelly)
Do you remember those places that would cook you a whole tandoori chicken but you needed to give them 24 hours notice?
Nowhere, round here, does that now
That was the 80's and 90's
I reckon they were using a lot of chicken stock then
All the same, I think Currytester's recipes might still turn up trumps
I'm keen to hear his results
I hope he posts soon